Microsoft Chrome is essentially Chrome slapped with a new, pardon the pun, chrome. If a website works on Chrome it should work on the MS version as well - assuming they haven't made many breaking changes - and from what I have read so far they have only replaced auxiliary services and haven't altered the rendering engine.
Presumably they're still loading a version of the website which Trident/Edgekit which used to make up for the discrepancies between the other browsers.
The Edge devs went out of their way to craft a useragent that doesn't trigger Edge UA sniffing, which is why the pages used to work until Google intentionally broke them in Edge.
Do you have any sources that talk about these breaking issues? I wouldn't be entirely shocked that Google would be doing this, but I do want to see more than just one anecdote that it's ill intent rather than incompetence.
